Cow Eye Dissection Worksheet

1. Tell three observations you made when you examined the surface of the eye:

1. ______________________________
2. ______________________________
3. ______________________________

2. Identify the following structures:

1. cornea
2. tear gland-
3. optic nerve
4. iris-
5. pupil-
6. retina

3. Name the three layers you sliced through when you cut across the top of the eye:

1. ______________________________
2. ______________________________
3. ______________________________

4. Match the following parts of the eye to their function: (ciliary body, sclera, iris, retina, lens, & tapetum lucidum)

____________________ Contains the photoreceptors for vision.
____________________ The colored portion of the eye.
____________________ This structure changes shape to focus light on the retina.
____________________ The opening in the iris through which light passes.
____________________ The iridescent portion of the choroid layer in nocturnal animals.
____________________Consists of muscles, which control and shape the lens.
____________________ The white of the eye.

4. Use the pictures below to name the parts of the eye:

1. ________________________________________
2. ________________________________________
3. ________________________________________
4. ________________________________________
5. ________________________________________
6. ________________________________________
7. ________________________________________
8. ________________________________________
9. ________________________________________
10. ________________________________________
11. ________________________________________
12. ________________________________________